Prince Harry and Meghan Markle Receive Envelope With Anthrax-Like Powder The letter was addressed to the royal couple and sent to Kensington Palace on Feb. 12. Scotland Yard has launched an investigation, but specialists confirmed the powder was harmless. A second letter was reportedly sent to the office of Home Secretary Amber Rudd at the House of Parliament. According to Business Insider, Scotland Yard is on high alert
with the royal wedding around
the corner in May. Markle has been assigned with a security team from the Met's Royalty and Specialist Protection Command.